What does NRTS stand for?

What does NRTS mean?

NRTS	Not Repairable This Station Governmental » Military
NRTS	Network Resource and Training Site Academic & Science » Universities
NRTS	National Roads Telecommunications Services Governmental » Transportation
NRTS	Network Relay Test System Computing » Networking
NRTS	Northern Radio Telephone Service Business » Firms
NRTS	Near Real-Time System Computing » Hardware
NRTS	National Reactor Testing Station Governmental » US Government
NRTS	Non-profit Resource Training Series Community » Non-Profit Organizations
NRTS	Not Repairable at This Station Governmental » NASA